Your Yoosee W-Fi cameras can record video on TF/SD memory card. These files with .av file extension, they usually can not be recognized/played by traditional media players. You can play them via CMSClient software or VLC (but need to tweak its preference settings). The CMSClient software also offers file conversion function can convert your .av files to friendly .mp4 files.
If you wish to share your recorded video to social media (Google plus, Facebook, YouTube...etc) and chat apps (Whatsapp, Wechat, QQ...etc), you can use the record function on Yoosee app. Here is tutorial shows you how to share the video clips to your friends.
Step 1: Tap [Playback] button on camera's thumbnail, then click the recorded files you want to share.
Step 2: Now it's playing your recorded video file, you can find a record icon on the right bottom, click the record button, you can record the video on your smartphone, for iOS, it will pop-up a dialog to ask for permission of accessing your photos, tap "OK".
Step 3: After allow the app to access your photos, it will start to record video on your smartphone's photo album, tap the record video icon again to stop the recording, then go to your smartphone's album, you can find a new video file.
Step 4: Tap the share icon, you can share this video to many different apps.